Buffing-roll



(No Model.)

I. H. EMERSON.

BUPFING ROLL.

No. 325.329. Patented Sept. 1, 1885.

UNITED STATES PATENT @rEicE.

FRANK H. EMERSON, OF LYNN, MASSACHUSETTS.

BUFFlNG-ROLL.

flI-EGIFICATION forming part of Letters Patent No. 325,329, dated September 1, 1885,

Application filed May 22, 1885.

.To (LZZ whom it may concern:

Be it known that I, FRANK H. EMERsoN, of Lynn, county of Essex, State of Massachusetts, have invented an Improvement in Buffing-Rolls, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention has for its object to improve the construction of buffing-rolls for usein boot and shoe and other work, the roll being covcred with sand, emery, or other usual cloth or paper.

My invention is an improvement upon that class of rolls composed of two semi-eylindrical shells hinged together and applied to a shaft, the ends of the buffing material being caught between the closed jaws of the two halves of the shell.

In accordance with my invention the shaft of the buffing-roll has secured to it at the proper distances apart two disks provided with pins to co-operate with cams secured to the opposite ends of one of the semi-cylindri' cal shells or halves of the buffing-roll, the peripheries of the cams being acted upon by the pins referred to to clamp the semicylindrical shells together about the shaft.

Figure 1 shows a cross-section of my in1- proved buffing-roll in the line was. Fig. 2, in elevation, showsa part of the shaft, one of the disks thereon having the pin and one semieylindrieal shell or half of the buffing-roll, the ring holding the buffingroll upon the shaft being in section; and Fig. 3 represents an end view of the roll alone, it being opened and de tached from the shaft.

The buffing-roll is composed of two seinicylindrical shells, A A, hinged together at one side near their opposite ends by suitable hinges, B, one only of which is shown. The seini'-cylindrieal shell or half A is provided at each end with a like metal plate, O, at tacl'ied thereto by screws 2, the plate having a rim, 3, and having attached to it a ring, 0, through which is extended loosely the buffingshaft D, the semicylindrical shell or half A, near the said ring, having a notch, as at a, into which enters a pin, 1), attached to the shaft D, the said notch and pin determining the extent to which the buiiling-roll may be (No model.)

rotated upon the shaft in order to effect the opening of the former to remove or to apply sand, emery, or other cloth-or paper or other buffing material.

The semi-cylindrical shell A of the buffing-roll has at each end a plate, E, provided with a rim, 4, and with a cam-surface or projection, 5, herein shown as attached to the plate by a screw, 6; but the said cam may form an integral part of the plate. The shaft D has fast upon it, at distances apart substantially equal to the length of the roll, disks F, each having at its inner side a projecting pin, f, which, when the two halves of the semieylindrieal shell forming the roll are brought together, as in Fig. 1, passes over upon the upper sides of the cam-surfaces 5, and during the partial rotation of the roll the pin f, acting upon the cam-surfaces, binds the two parts of the roll together, the pins f, when the roll is being used, occupying the position shown in section in Fig. 1.

To open the roll to remove the buffing mate rial and to apply new material thereto, it will only be necessary to stop the shaft D, and turn the roll in the direction of the arrow 8 thereon (see Fig. 1) until the cam-surfaces are carried sufficiently backward to release the pins f, and thereafter the roll may be readily opened or one half be turned away from the shaft on the hinges B. New paper and cloth having been applied, the operator holds the same in place with its edges lapped over the jaws h h, while the roll is closed or shut together on the shaft, and thereafter by a slight partial rotation of the roll upon the shaft the cam-surfaces 5 are carried or pushed forward under the pins f which latter, acting on the cams, forces the two semi-cylindrical shells or halves close together and so as to be rotated with the shaft when the latter is started.

When rings have been employed having cam-surfaces they have been applied to the shaft loosely, making it necessary for the 0pcrator to actuate the loose cam-rings separately, and in so doing he is apt to fail in getting the cloth or paper laid smoothly upon the roller.

I claim 1. The herein-described buffing-roll, comprising two semi-cylindrical sections hinged ICQ together to open away from one another to I or shells, A A, hinged together, and having receive the bnffing material, and camsurat their opposite ends plates 0 and E, the faces, substantially as described, applied to plate E having cam-surfaces 5, all to operate one of said sections at its opposite ends, co1nsubstantially for the purpose set forth. I 5 5 bined with a shaft and disks arranged there- In testimony whereof I have signed my name on at the ends of the roll, and having pins to this specification in the presence of two subco-operating with the cam-surfaces, substan- I scribing witnesses. tially asset forth.

2. The shaft provided with a pin, 1), and Vitnesses: 10 having the fixed disks F, provided with pins f B. J. NOYES,

combined with thetwoseini-cylindrical halves VV H. SIGSTON.

FRANK H. EMERSON. 

